Denial of Service (DoS) Vulnerability in phpMyAdmin
Summary
CVE-2016-9863: An issue was discovered in phpMyAdmin. Affects phpmyadmin across 6 version ranges.
< 4.6.5.2-r0
< 07fd0bce678e83d5f81d7a683f1052fe45764d0c
< 35e191d74b50c8f5a7b87fa9889869cc3a88255d
< 37b38431d167915675fc8ab512470528147e72de
< b9a6a9993e175ff13375462333ce1139095d01e1
< f2db92434b71973a1281dfbaec8837e51e602c77
Fixed in 4.6.5.2-r0. How to fix ↓
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Background
phpMyAdmin is a popular open-source tool for managing MySQL databases. It provides a web-based interface for performing various database administration tasks. The vulnerability identified as CVE-2016-9863 affects all versions of phpMyAdmin 4.6.x prior to 4.6.5.2-r0. This vulnerability allows an attacker to launch a Denial of Service (DoS) attack by sending a very large request to the table partitioning function.
Vulnerability Detail
The vulnerability arises due to a lack of proper input validation in the table partitioning function of phpMyAdmin. By sending an excessively large request, an attacker can overwhelm the server and cause it to become unresponsive, resulting in a Denial of Service (DoS) condition. This can disrupt the availability of the application and potentially impact the entire server infrastructure. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 7.5, indicating a high severity.
How To Fix
Minimum fixed version
4.6.5.2-r0
This is the first release that contains the fix.
sudo apk add --upgrade phpmyadminTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. Upgrading to the patched version is the only reliable solution.
Conclusion
The Denial of Service (DoS) vulnerability in phpMyAdmin can be exploited by sending a large request to the table partitioning function. This can result in a server becoming unresponsive and impacting the availability of the application. It is crucial to upgrade to phpMyAdmin version 4.6.5.2-r0 or later to mitigate the risk of exploitation. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
phpMyAdmin is a web-based tool for managing MySQL databases. It provides a graphical interface for performing various database administration tasks.
A Denial of Service (DoS) attack is a malicious attempt to disrupt the availability of a computer system or network. It aims to overwhelm the target with a flood of illegitimate requests or excessive resource consumption, rendering it unresponsive to legitimate users.
This vulnerability allows an attacker to launch a DoS attack against a phpMyAdmin installation by sending a very large request to the table partitioning function. This can cause the server to become unresponsive and disrupt the availability of the application.
The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 7.5, indicating a high severity.
To mitigate the risk of exploitation, it is recommended to upgrade to phpMyAdmin version 4.6.5.2-r0 or later, which includes the necessary patches to address the vulnerability.
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